The epimerisation at C10 of ε-rhodomycinone by aqueous alkali treatment of its 6,7-acetonide is described. Daunosaminyl ε-rhodomycinone and daunosaminyl 10-epi-ε-rhodomycinone were prepared and compared with regard to their antibacterial properties. Daunosaminyl ε-pyrromycinone and 10-descarbomethoxy-ε-pyrromycin were synthesized and their antitumor properties were compared with some naturally occurring glycosides of ε-pyrromycinone.
通过对6,7-缩醛衍生物进行水性碱处理,描述了ε-罗多霉素酮C10的顺式异构化。制备了达诺霉胺基ε-罗多霉素酮和达诺霉胺基10-顺式异构体ε-罗多霉素酮,并比较了它们的抗菌性能。合成了达诺霉胺基ε-吡啶霉素酮和10-脱羧甲氧基-ε-吡啶霉素,并将它们的抗肿瘤性能与一些天然产生的ε-吡啶霉素酮糖苷进行了比较。